Service integrated digital signal transmission system

Abstract From the Canadian patent

A service integrated time multiplex digital signal transmission system for transmitting narrowband and broadband signals between a central exchange terminal and a subscriber terminal which system includes a optical, fiber waveguide path connected between the terminals a transmitter device at, one terminal composed of sources of such narrowband and broadband signals and multiplexers connected for combining the signals provided by the sources into a multiplex signal and for supplying such multiplex signal to the optical fiber waveguide path, and a receiver device at the other terminal composed of demultiplexers connected to the optical fibre waveguide path for receiving multiplex signals from …